Use TContiguousData rooms interface in vdisk/pdisk

Use TContiguousData rooms interface in vdisk/pdisk/erasure

1 files changed, 8 insertions, 0 deletions

diff --git a/library/cpp/actors/util/contiguous_data.h b/library/cpp/actors/util/contiguous_data.h
index 6b19e42753f..7510cc979fd 100644
--- a/library/cpp/actors/util/contiguous_data.h
+++ b/library/cpp/actors/util/contiguous_data.h
@@ -848,6 +848,14 @@ public:
         return GetSize();
     }
 
+    bool empty() const {
+        return !static_cast<bool>(Backend);
+    }
+
+    operator bool() const {
+        return !empty();
+    }
+
     const char* data() const {
         return GetData();
     }